1821  Davison McDowell sold part of his plantation to Samuel Smith, who quickly sold the same piece of property. This tract would become Rose Bank Plantation. McDowell retained 400 acres and called his plantation Asylum (3, p. 350).

Circa 1822  McDowell married Mary Moore and she requested improvements be made to the house. McDowell proceeded with these improvements but Mary passed away in April 1823 (3, p. 350).

Prior to January 1837  McDowell sold Asylum Plantation to Dr. Paul Weston. McDowell had previously purchased and moved to Hasty Point Plantation (3, p. 352).

1837  Dr. Weston died leaving the plantation to his son Francis Weston (3, p. 352).

1843  Robert F. W. Allston purchased the plantation from Francis Weston. Allston is most likely the person that changed the name of the plantation from Asylum to Exchange since this is the name he used in his personal writings. Allston increased the size of Exchange Plantation by purchasing 117 acres of Breakwater Plantation (3, p. 353).

Interesting, after selling Asylum, Weston then purchased Hasty Point Plantation from the heirs of Davison McDowell who had died in 1842 (3, p. 353).

1864  Robert F. W. Allston died willing the plantation to his daughter Elizabeth Waties Allston. Elizabeth never took ownership of the plantation as the Allston family was left in financial peril after the Civil War. The family was unable to pay the debts of the estate so Exchange was put up for sale (3, p. 353-354).

Land

Slaves

In the early 1800s, Davison McDowell hired slaves from his mother Agnes Kirkpatrick. He considered Rose, Manza, Nero and Juno to be particularly valuable. So much so McDowell trusted Manza to direct the plantation's activities while he was ill (3, p. 351).